I struggle similar to many with self-doubt a lot of the time and it’s nice when I do see how I am treating myself and how it’s not the most healthiest, it’s going to take strength of the moment to bust and detach from those negative connotations I have about myself. However, running helps me see differently about my life. I think most of it is involved with letting myself go into a place where I am measuring up with someone who I think has a better life than me. But as I grow to be appreciative and express gratitude for the only life I do have now. It does help to open my eyes to perceive someone as being honest and trustworthy so we can explore their understanding of their world together, it can be really fun.
Lastly, my main point that might help your friend is by not having a long term goals that would help her find a sense of self or purpose in life. It doesn’t have to be huge or have a measurable outcome. It’s purpose is to feel your unique oneness to the world. I know it’s been said before. However, small step though it’s a good thing your going for it’s great. I wish you with helping your friend feel the love she has!